Labeling Color Function
CH1 CR
CH2 CR
Green Counter in operation; status of the lowest value bit of counter 1 (CH 1) or
counter 2 (CH2)
CH1 DIR
CH2 DIR
Green Count direction; LED illuminated if counter 1 (CH1) or counter 2 (CH2) is
counting backwards.
CH1 IN 0
CH2 IN 0
Green Status of input 1I0 of counter 1 and/or 2I0 of counter 2
CH1 IN 1
CH2 IN 1
Green Status of input 1I1 of counter 1 and/or 2I1 of counter 2
CH1 IN 2
CH2 IN 2
Green Status of input 1I2 of counter 1 and/or 2I2 of counter 2
CH1 OUT 0
CH2 OUT 0
Green Status of output 1Q0 of counter 1 and/or 2Q0 of counter 2
CH1 OUT 1
CH2 OUT 1
Green Status of output 1Q1 of counter 1 and/or 2Q1 of counter 2
Front connectors
The front connector has the following terminals:
• 5-V or 24-V encoder signals for counters 1 and 2
• Encoder supply
• Digital input signals to start, stop and set counters 1 and 2
• Digital output signals Q0 and Q1 for counters 1 and 2
• Auxiliary voltage 1L+ to generate the encoder supply voltages
• Load voltage 2L+ to supply the digital outputs
The front connector can be ordered separately (see chapter "Spare parts (Page 107)").
Front connector coding
If you hook in the front connector, the front connector coding engages. Thereafter this front
connector can only be attached to an FM 450-1 module.
Labeling strips
A plate block with four labeling strips is included with the module. These strips can be labeled
individually with the corresponding signal names.
Product Overview
1.4 The FM 450-1 hardware
Counter module FM 450-1
14 Equipment Manual, 03/2022, A5E03648739-AC
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